should crab
Verbo regular: crab - crabbed- crabbed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should crab
you should crab
she should crab
we should crab
you should crab
they should crab 	I should be crabbing
you should be crabbing
she should be crabbing
we should be crabbing
you should be crabbing
they should be crabbing	I should have crabbed
you should have crabbed
she should have crabbed
we should have crabbed
you should have crabbed
they should have crabbed	I should have been crabbing
you should have been crabbing
she should have been crabbing
we should have been crabbing
you should have been crabbing
they should have been crabbing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not crab
you should not crab
she should not crab
we should not crab
you should not crab
they should not crab 	I should not be crabbing
you should not be crabbing
she should not be crabbing
we should not be crabbing
you should not be crabbing
they should not be crabbing	I should not have crabbed
you should not have crabbed
she should not have crabbed
we should not have crabbed
you should not have crabbed
they should not have crabbed	I should not have been crabbing
you should not have been crabbing
she should not have been crabbing
we should not have been crabbing
you should not have been crabbing
they should not have been crabbing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I crab?
should you crab?
should she crab?
should we crab?
should you crab?
should they crab? 	should I be crabbing?
should you be crabbing?
should she be crabbing?
should we be crabbing?
should you be crabbing?
should they be crabbing? 	should I have crabbed?
should you have crabbed?
should she have crabbed?
should we have crabbed?
should you have crabbed?
should they have crabbed? 	should I have been crabbing?
should you have been crabbing?
should she have been crabbing?
should we have been crabbing?
should you have been crabbing?
should they have been crabbing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not crab?
should you not crab?
should she not crab?
should we not crab?
should you not crab?
should they not crab? 	should I not be crabbing?
should you not be crabbing?
should she not be crabbing?
should we not be crabbing?
should you not be crabbing?
should they not be crabbing? 	should I not have crabbed?
should you not have crabbed?
should she not have crabbed?
should we not have crabbed?
should you not have crabbed?
should they not have crabbed? 	should I not have been crabbing?
should you not have been crabbing?
should she not have been crabbing?
should we not have been crabbing?
should you not have been crabbing?
should they not have been crabbing?